Integration: Change to grpc.NewClient

Fun times: In grpc 1.63 grpc.Dial and a few of the options we use (WithBlock) are
deprecated in favor of the no-IO variant NewClient. The uses in the integration tests
should be easy to swap however as they don't use WithBlock anyways, so that's what this
change aims to do. This also removes some context.WithTimeout's as I don't see anywhere
the context is actually used in Dial if you don't also specify WithBlock (and it's
especially not used now with NewClient as it doesn't even take in a context).

Signed-off-by: Danny Canter <danny@dcantah.dev>

integration/remote/remote_image.go

@@ -33,7 +33,6 @@ limitations under the License.
 package remote
 
 import (
-	"context"
 	"errors"
 	"fmt"
 	"time"
@@ -62,10 +61,7 @@ func NewImageService(endpoint string, connectionTimeout time.Duration) (internal
 		return nil, err
 	}
 
-	ctx, cancel := context.WithTimeout(context.Background(), connectionTimeout)
-	defer cancel()
-
-	conn, err := grpc.DialContext(ctx, addr,
+	conn, err := grpc.NewClient(addr,
 		grpc.WithTransportCredentials(insecure.NewCredentials()),
 		grpc.WithContextDialer(dialer),
 		grpc.WithDefaultCallOptions(grpc.MaxCallRecvMsgSize(maxMsgSize)),